A union man visiting Nevada decides to check out the local brothels. He enters one and asks the madam, "Is this a Union brothel?"
The madam replies, "No sir it isn't".
"Well then, how much of a cut does the girl get?" asks the gentleman.
The madam answers, "The house gets 80% and the girls all get 20%."
"That's outrageous!" he says and he goes out to find a brothel with fairer standards.

He enters another house and asks the madam, "Is this a union house?"
"Yes it is, the girls all get 75% here," replies the madam.
"That's more like it!" replies the gentleman, "I'd like that cute blond over there!"
"I'm sure you would sir," she says. Then, gesturing to a large older woman, she says, "But Ethel here has seniority".

_________________________I can explain it to you but I can't understand it for you.